Oatey 38532, 2 Inch, Brass Easy to remove knockout, patent pending hammer valves Snap-on faceplate Frame accommodates up to 1 inch drywall Box made of high impact Polystyrene 4 support brackets included for mounting Patented, versatile design allows for right, left, or center drain and bottom or top mount valves Lock and Load valve mounting system for quick and easy positioning Single lever valve mounting hub locks into position in seconds Unique, easily installed and removed test cap that does not fall into drain Simplified and more efficient inventory Patented, versatile design allows for right, left, or center drain and bottom or top mount valves Lock and Load valve mounting system for quick and easy positioning Single lever valve mounting hub locks into position in seconds Unique, easily installed and removed test cap that does not fall into drain Simplified and more efficient inventory